A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 6240-01-198-7929
NSN 5965-00-243-9496
NSN 6645-01-547-3224
NSN 5920-00-492-5516
NSN 5996-01-485-3840
NSN 6685-01-510-4558
NSN 5965-00-904-9103
NSN 6645-00-754-4108
NSN 5910-00-814-1270
NSN 6610-00-912-6374
NSN 6240-00-778-7845
NSN 5950-01-145-4510